String comparison
Velocity MLT vs NRG2
Head Velocity MLT against Tecnifibre NRG2: ratings, specs and which one fits your junior.
The short answer
Both are multifilament strings. Velocity MLT leads on control. NRG2 leads on power and comfort. For a junior with arm concerns, NRG2 is the safer choice. Velocity MLT costs less per set.
Ratings
Power
Spin
Control
Comfort
Durability
Tension hold
Ratings are on a 1–10 scale. The higher score is in bold when they differ.
Pick Velocity MLT if…
- You want more control (7 vs 5 out of 10)
- You want to spend less (from $8 vs $14 a set)
- Best for: budget-conscious players wanting multifilament
- Best for: young juniors needing comfort
- Best for: players with arm issues moving from poly
Pick NRG2 if…
- You want more power (9 vs 7 out of 10)
- You want more comfort (9 vs 8 out of 10)
- Arm comfort comes first (arm friendliness 5/5 vs 4/5)
- Best for: players with arm issues or tennis elbow
- Best for: developing juniors with slow to medium swings
- Best for: doubles players wanting touch on volleys
Specs side by side
| Spec | Velocity MLT | NRG2 |
|---|---|---|
| Type | Multifilament | Multifilament |
| Construction | 1000x nylon multifilament core with 30 extra nylon filaments, polyurethane resin, low-friction coating | 1,120 Elastyl fibers bonded with flexy polyurethane resin, SPL coating |
| Gauges | 16, 17 | 16, 17 |
| Stiffness | Low | Low |
| Set price | $8–10 | $14–18 |
| Reel price | $80–100 | $150–180 |
| Arm friendliness | 4/5 · Good | 5/5 · Excellent |
| Cost to maintain | 5/5 | 3/5 |
| Recommended from | Age 8 | Age 8 |
| Levels | Beginner, Intermediate | Beginner, Intermediate |
| Play styles | All court, Beginner, Touch player | All court, Serve and volley, Touch player |
| Junior tension | 52-55 lbs for juniors. String 3-4 lbs higher if coming from poly. | 52-56 lbs for juniors. |
Velocity MLT in short
Launched in 2015, Head Velocity MLT packs premium comfort at under $10. Unlike traditional high-powered multifilaments, Head built Velocity MLT for balance - sufficient power with good control. The 1000x nylon core with 30 extra filaments is bound with polyurethane resin and coated with low-friction coating for durability and spin potential. Lab tested stiffness of 153 lbf/in makes it soft. Provides lively yet controlled power - not as explosive as softer multis, which makes it easier to control. Great for intermediate players and those with arm issues wanting to move from poly.
NRG2 in short
Tecnifibre NRG2 features 1,120 individual Elastyl fibers bonded with polyurethane resin offering 400% elasticity. This gives 12% more power than standard synthetic polyamide strings. The SPL (Silicon Pyrogene Lubritec) coating improves durability and resistance to notching. "Let's not mince words, Tecnifibre NRG2 is powerful" - ideal for players with slow to medium strokes still developing their swings. Playtesters raved about the soft, buttery feel. One of the best tennis strings for tennis elbow.
Velocity MLT vs NRG2: quick answers
Which has more spin, Velocity MLT or NRG2?
They tie on our spin rating (6/10 each).
Which is more arm-friendly for a junior?
Tecnifibre NRG2 scores 5/5 for arm friendliness, against 4/5 for Velocity MLT. It is recommended from age 8.
Which lasts longer?
They tie on durability (5/10). Tension maintenance: Velocity MLT 6/10, NRG2 6/10.
Which is cheaper?
Velocity MLT costs about $8–10 a set and NRG2 about $14–18, at typical retail.
The short answer and the "pick if" lists are generated from our ratings and junior data only. Data verified 2025-01 (Velocity MLT) and 2025-01 (NRG2).